12.1 Device-Specific Information

Table 12-1. Oscillator Summary Table
Clock GeneratorsPLLs
162
Table 12-2. CLKGEN Assignment
Clock GeneratorInput Clock Source Module Clock Destination
Clock Generator 1All sourcesSystem clock and peripheral bus
Clock Generator 2FRCFRC
Clock Generator 3BFRCBFRC
Clock Generator 4All sourcesRAM BIST and NVM BIST
Clock Generator 5All sourcesPWM
Clock Generator 6All sourcesADC
Clock Generator 7All sourcesPDM DAC
Clock Generator 8All sourcesUART
Clock Generator 9All sourcesSPI
Clock Generator 10All sourcesCAN
Clock Generator 11All sourcesPTG
Clock Generator 12All sourcesRDC
Clock Generator 13All sourcesCCP and REFO1
Clock Generator 14All sourcesCLC, IOIM and REFO2
Clock Generator 15All sourcesTRACE
Clock Generator 16All sourcesI3C and BiSS
Note: Clock generator 1/2/3/4 is always ON.
Table 12-3. Clock Generator Clock Resources
ValueDescription
0b1111-0b1011Reserved
0b1010REFI2 – User definable clock source
0b1001REFI1 – User definable clock source
0b1000PLL2 VCO output
0b0111PLL1 VCO output
0b0110PLL2 FOUT output
0b0101PLL1 FOUT output
0b0100BFRC/244 (32 KHz)
0b0011POSC – Primary crystal oscillator (4-32 MHz)
0b0010BFRC – Internal backup 8 MHz RC oscillator
0b0001FRC – Internal 8 MHz RC oscillator (default)
0b0000Reserved
Table 12-4. PLL Clock Sources
ValueDescription
0b1111-0b1011Reserved
0b1010 REFI2 – User definable clock source
0b1001REFI1 – User definable clock source
0b1000-0b0100Reserved
0b0011POSC – Primary crystal oscillator (5-32 MHz)
0b0010BFRC – Internal backup 8 MHz RC oscillator
0b0001FRC – Internal 8 MHz RC oscillator (default)
0b0000Reserved
Table 12-5. Clock Monitor Clock Resources
ValueDescription
0b011111-0b011011Reserved
0b011010 REFI2 – User definable clock source
0b011001REFI1 – User definable clock source
0b011000PLL2 VCO Div Output
0b010111PLL2 FOUT Output
0b010110PLL1 VCO Div Output
0b010101PLL1 FOUT Output
0b010100LPRC or BFRC/244
0b010011POSC - Primary crystal oscillator (4-32 MHz)
0b010010BFRC - Internal Backup 8 MHz RC oscillator
0b010001FRC - Internal 8 MHz RC oscillator
0b010000Reserved
0b1111CLKGEN16
0b1110CLKGEN15
0b1101CLKGEN14
0b1100CLKGEN13
0b1011CLKGEN12
0b1010CLKGEN11
0b1001CLKGEN10
0b1000CLKGEN9
0b0111CLKGEN8
0b0110CLKGEN7
0b0101CLKGEN6
0b0100CLKGEN5
0b0011CLKGEN4
0b0010CLKGEN3
0b001CLKGEN2
0b000CLKGEN1 - System clocks and source for PB clock dividers